Civil Engineering Technical Questions Answers - Ask a Civil Engineer - Recent questions and answers in Strength of Materials
http://www.aboutcivil.org/answers/qa/civil-engineering/strength-of-materials
Powered by Question2AnswerDefine Frame?list any two types of frames
http://www.aboutcivil.org/answers/3930/define-frame-list-any-two-types-of-frames
frames and two types of framesStrength of Materialshttp://www.aboutcivil.org/answers/3930/define-frame-list-any-two-types-of-framesTue, 24 Oct 2017 13:07:11 +0000need help fot calculate deflection
http://www.aboutcivil.org/answers/3887/need-help-fot-calculate-deflection
hi guys <br />
i want to determine deflection of 2d shape that is a bent pipe , like triangle , that the BOTH ends of its are fixed , and a force applied on his head , Perpendicular on the plate of triangle , i want to calcualte deflection the head by formula .<br />
please help me . <br />
ty.Strength of Materialshttp://www.aboutcivil.org/answers/3887/need-help-fot-calculate-deflectionWed, 06 Sep 2017 10:08:41 +0000A overhanginging beam( equal overhang on both side(a) ) is subjected to udl over its entire length(L). to get equal bending moment at support and at mid span, what should be the overhanging length with respect to L (i.e. xL, what is the value of x)
http://www.aboutcivil.org/answers/3875/overhanginging-overhang-subjected-support-overhanging-respect
both side equal overhang ( a)<br />
length L ( including overhang)<br />
distance between support = (L-2a)Strength of Materialshttp://www.aboutcivil.org/answers/3875/overhanginging-overhang-subjected-support-overhanging-respectWed, 16 Aug 2017 08:20:06 +0000Answered: what is the physical significance of moment of inertia?
http://www.aboutcivil.org/answers/3300/what-is-the-physical-significance-of-moment-of-inertia?show=3442#a3442
moment of inertia has been used in civil engineering in two theories. once it has been used in bending beam theory and it has been used in buckling of beam problem. In both the cases its physical significance is different. <br />
in bending theory, it gives the resistance of a beam to resist bending whereas in the other case, it is used to identify the buckling tendency of a beam.Strength of Materialshttp://www.aboutcivil.org/answers/3300/what-is-the-physical-significance-of-moment-of-inertia?show=3442#a3442Thu, 17 Sep 2015 09:43:33 +0000Answered: If F1 = 109 N , F2 = 121 N and F3 = 85 N ,
http://www.aboutcivil.org/answers/3436/if-f1-109-n-f2-121-n-and-f3-85-n?show=3437#a3437
The diagram for this question is below <a href="https://session.masteringengineering.com/problemAsset/1736103/1/Hibbler.ch4.p95.jpg" rel="nofollow" target="_blank">https://session.masteringengineering.com/problemAsset/1736103/1/Hibbler.ch4.p95.jpg</a>Strength of Materialshttp://www.aboutcivil.org/answers/3436/if-f1-109-n-f2-121-n-and-f3-85-n?show=3437#a3437Thu, 17 Sep 2015 09:39:14 +0000Answered: what's the use of column drop or capital. or what will the column capital control.? shear. torsion or bending..?
http://www.aboutcivil.org/answers/1976/column-capital-column-capital-control-shear-torsion-bending?show=3394#a3394
This should help <a href="http://www.cesdb.com/torsion9.html" rel="nofollow" target="_blank">http://www.cesdb.com/torsion9.html</a>Strength of Materialshttp://www.aboutcivil.org/answers/1976/column-capital-column-capital-control-shear-torsion-bending?show=3394#a3394Thu, 17 Sep 2015 08:32:42 +0000Answered: What is a free body diagram
http://www.aboutcivil.org/answers/3352/what-is-a-free-body-diagram?show=3353#a3353
Hi !, here is the explanation.<br />
<br />
Free body diagram represent, all the actions and reactions by removing the supports. Action is what the external force is applied on the body. where as the reaction is what is getting applied on the body due to applied load by the support.Strength of Materialshttp://www.aboutcivil.org/answers/3352/what-is-a-free-body-diagram?show=3353#a3353Thu, 17 Sep 2015 07:33:26 +0000Answered: What is lever?
http://www.aboutcivil.org/answers/2037/what-is-lever?show=3207#a3207
lever is a rigid body it has only small deformations(neglegible) .cantilever beams are used in constructions.one side fixed support and other end is free..Strength of Materialshttp://www.aboutcivil.org/answers/2037/what-is-lever?show=3207#a3207Tue, 15 Sep 2015 03:51:59 +0000Answered: what are uses of drawing shear force and bending moment diagrams..please give best answer..
http://www.aboutcivil.org/answers/2013/drawing-shear-force-bending-moment-diagrams-please-answer?show=3206#a3206
those are used to find the deflections in the beam at any point throughout the beam.Strength of Materialshttp://www.aboutcivil.org/answers/2013/drawing-shear-force-bending-moment-diagrams-please-answer?show=3206#a3206Tue, 15 Sep 2015 03:50:56 +0000Answered: a beam ab length l is simply supported loaded as shown. moment of inertia I for left half and 2I for right half.calculate slope at ends and deflection at midspan and under the point loads
http://www.aboutcivil.org/answers/2204/length-supported-moment-inertia-calculate-deflection-midspan?show=3153#a3153
The magnitudes and positions of the point loads are not specified in your question. This problem can be easily solved by the conjugate beam method, as discussed in the video lecture and the textbook on Structural Analysis (where a similar example problem has been solved).Strength of Materialshttp://www.aboutcivil.org/answers/2204/length-supported-moment-inertia-calculate-deflection-midspan?show=3153#a3153Mon, 14 Sep 2015 08:46:34 +0000Answered: Explain the Types of Loading
http://www.aboutcivil.org/answers/2126/explain-the-types-of-loading?show=3122#a3122
<p><a rel="nofollow" href="http://www.aboutcivil.org/answers/civil-engineering/Write-a-short-note-on-types-of-loads?--Explain-calculation-of-wind-load-on_1434">Types of Loads</a> | <a rel="nofollow" href="http://www.enggpedia.com/civil-engineering-encyclopedia/dictionary/structural-engineering/334-structure-types-of-structures">Types of Structures</a> | <a rel="nofollow" href="http://enggpedia.com/civil-engineering-encyclopedia/dictionary/structural-engineering/333-frame-structures">Types of Frames</a> | <a rel="nofollow" href="http://www.aboutcivil.org/structural-analysis.html">Structural Analysis</a></p><h1>Types of loading:</h1><h2>Axial loading</h2><p>Axial loading is a type of force applied all along the axis line. For instance spine compression right from the head is an axial load. Of course this ends in injury or fracture of either spine or spinal cord. Axial load demonstrates specific mechanical strength of materials, which is referred as uniaxial compressive strength or tensile strength. This is used to measure strength variation with constant increase in pressure.</p><h2>Transverse loading</h2><p>Transverse loading is type of applied force perpendicular to the longitudinal axis line. This loading cause objects to bend and gets deflected from the original point of contact. It has compressive strains and internal tensile resulting in curvature change.</p><h2>Torsional loading</h2><p>Torsional loading causes twisting action of material. The pair of external force results in twisting action of couple due to Torsional loading. They act in opposite direction of couples either in parallel plane or of single couple which has one end fixed against couple rotation.</p><h2>Questions:</h2><p>What are loading?<br>What are types of loading?<br>Define Torsional loading with instance.</p>Strength of Materialshttp://www.aboutcivil.org/answers/2126/explain-the-types-of-loading?show=3122#a3122Mon, 14 Sep 2015 05:25:34 +0000Answered: What is difference between bearing stress and shearing stress?
http://www.aboutcivil.org/answers/1926/what-difference-between-bearing-stress-and-shearing-stress?show=3107#a3107
There are two major method to do analysis or even design in RC -ultimate limit state and elastic limit state method( also called working stress method) . Nowadays, ultimate limit state method has taken over elastic's approach which is used in the past (some old book uses this).Strength of Materialshttp://www.aboutcivil.org/answers/1926/what-difference-between-bearing-stress-and-shearing-stress?show=3107#a3107Fri, 11 Sep 2015 04:44:44 +0000Answered: What is a youngs modulus full details
http://www.aboutcivil.org/answers/1953/what-is-a-youngs-modulus-full-details?show=3099#a3099
Within the elastic limit, the ratio of longitudnal stress by longitudnal strain is known as Young's modulus. It is also termed as Modulus of Elasticity and denoted by 'E".. . . . .Strength of Materialshttp://www.aboutcivil.org/answers/1953/what-is-a-youngs-modulus-full-details?show=3099#a3099Fri, 11 Sep 2015 04:32:19 +0000Answered: what is a shear force
http://www.aboutcivil.org/answers/1952/what-is-a-shear-force?show=3057#a3057
A force is called as shear force, if the force is passed along the plane of material.Strength of Materialshttp://www.aboutcivil.org/answers/1952/what-is-a-shear-force?show=3057#a3057Thu, 10 Sep 2015 08:09:11 +0000Answered: What is slenderness ratio ?
http://www.aboutcivil.org/answers/1910/what-is-slenderness-ratio?show=3034#a3034
The ratio of the effective length of column to least radius of gyration of its cross section is called the "Slenderness ratio" Mathematical Equation <br />
------>Slenderness ratio=L/RStrength of Materialshttp://www.aboutcivil.org/answers/1910/what-is-slenderness-ratio?show=3034#a3034Thu, 10 Sep 2015 05:34:18 +0000Answered: what is a shear stress?
http://www.aboutcivil.org/answers/679/what-is-a-shear-stress?show=3033#a3033
Shear stress is stress developed when we are applying force parallel to the plane of object.Strength of Materialshttp://www.aboutcivil.org/answers/679/what-is-a-shear-stress?show=3033#a3033Thu, 10 Sep 2015 05:33:12 +0000Answered: Bending Moment
http://www.aboutcivil.org/answers/1922/bending-moment?show=3032#a3032
Bending momet is difined as bending action of the beam,it is has a diagram,the digrame is called bending moment diagrame,this digrame is varied with respect to type of beam and acting load point load or udl load,uvl loadStrength of Materialshttp://www.aboutcivil.org/answers/1922/bending-moment?show=3032#a3032Thu, 10 Sep 2015 05:32:15 +0000Answered: what is the difference of torque and torsion
http://www.aboutcivil.org/answers/1919/what-is-the-difference-of-torque-and-torsion?show=3030#a3030
----->Torque is a measureable concept, whereas torsion is a concept, which is mathematically projected by the shear stress or the twist angle.<br />
<br />
-----> Torque requires at least one force and torsion requires at least two forces to happen.<br />
<br />
-----> Torque depends only on the magnitude, directions and the separation of the forces applied, while torsion depends on the torque, the type of material and the shape of the object.Strength of Materialshttp://www.aboutcivil.org/answers/1919/what-is-the-difference-of-torque-and-torsion?show=3030#a3030Thu, 10 Sep 2015 05:29:15 +0000Answered: bending moment diagram for 3 hinged arch?
http://www.aboutcivil.org/answers/1067/bending-moment-diagram-for-3-hinged-arch?show=2906#a2906
generally parabolicStrength of Materialshttp://www.aboutcivil.org/answers/1067/bending-moment-diagram-for-3-hinged-arch?show=2906#a2906Wed, 09 Sep 2015 07:04:38 +0000Answered: what is friction?
http://www.aboutcivil.org/answers/1412/what-is-friction?show=2905#a2905
Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. There are several types of friction: Dry friction resists relative lateral motion of two solid surfaces in contact. Dry friction is subdivided into static friction between non-moving surfaces, and kinetic friction between moving surfaces. Fluid friction describes the friction between layers within a viscous fluid that are moving relative to each other.[1][2] Lubricated friction is a case of fluid friction where a fluid separates two solid surfaces. [3][4][5] Skin friction is a component of drag, the force resisting the motion of a solid body through a fluid. Internal friction is the force resisting motion between the elements making up a solid material while it undergoes deformation.Strength of Materialshttp://www.aboutcivil.org/answers/1412/what-is-friction?show=2905#a2905Wed, 09 Sep 2015 07:04:03 +0000Answered: Why trapezoidal section is used in crane's hook?
http://www.aboutcivil.org/answers/486/why-trapezoidal-section-is-used-in-cranes-hook?show=2898#a2898
Trapezoidal section has thiner edge frm inside and thicker edge frm outside...line of action is frm thiner edge..inner edge of hook acts as curved beam..make it smoother to operate.Strength of Materialshttp://www.aboutcivil.org/answers/486/why-trapezoidal-section-is-used-in-cranes-hook?show=2898#a2898Wed, 09 Sep 2015 06:24:54 +0000Answered: what is compound stress and strain about?
http://www.aboutcivil.org/answers/458/what-is-compound-stress-and-strain-about?show=2881#a2881
The stess on any element in all the directions x,y,z is called compound stress...in plain stress only x and y direction are taken....Strength of Materialshttp://www.aboutcivil.org/answers/458/what-is-compound-stress-and-strain-about?show=2881#a2881Wed, 09 Sep 2015 06:00:11 +0000Answered: A load P is applied to a steel rod supported by an aluminium plate into which a 12-mm-diameter hole has been drilled. Knowing that the shearing stress must not exceed 180 MPa in the steel rod and 70 M
http://www.aboutcivil.org/answers/1183/applied-supported-aluminium-diameter-drilled-knowing-shearing?show=2816#a2816
5 ..................................Strength of Materialshttp://www.aboutcivil.org/answers/1183/applied-supported-aluminium-diameter-drilled-knowing-shearing?show=2816#a2816Tue, 08 Sep 2015 08:19:55 +0000Answered: what is the purpose of finding moment of inertia?
http://www.aboutcivil.org/answers/949/what-is-the-purpose-of-finding-moment-of-inertia?show=2765#a2765
It represents the strength of member according to its position and direction of load. Moment of inertia can be different for same member ccording to its placement.Strength of Materialshttp://www.aboutcivil.org/answers/949/what-is-the-purpose-of-finding-moment-of-inertia?show=2765#a2765Tue, 08 Sep 2015 04:13:08 +0000Answered: what are the use of stair up in the production of columns
http://www.aboutcivil.org/answers/805/what-are-the-use-of-stair-up-in-the-production-of-columns?show=2663#a2663
to hold the steel in the proper function .That means not to diverge so it possible to add the mortars or the cocreteStrength of Materialshttp://www.aboutcivil.org/answers/805/what-are-the-use-of-stair-up-in-the-production-of-columns?show=2663#a2663Mon, 07 Sep 2015 04:01:37 +0000Answered: what is strees and strain?
http://www.aboutcivil.org/answers/675/what-is-strees-and-strain?show=2614#a2614
stress is load divided by area with unit of MPA(n/mm2)and strain is ratio of elongation in length due to force to the original length with no unit.Strength of Materialshttp://www.aboutcivil.org/answers/675/what-is-strees-and-strain?show=2614#a2614Fri, 04 Sep 2015 07:20:04 +0000Answered: Write short note on design load, characteristic load, characteristic strength?
http://www.aboutcivil.org/answers/547/write-short-design-characteristic-characteristic-strength?show=2526#a2526
<p><strong>Characteristic Strength:</strong></p><p>It also called compressive strength, tested on compressive strength testing machine.</p><p><strong>Definition:</strong></p><p>It is Characteristic compressive Strength of concrete bellow which 5% of test result not expected to fall.</p><p><strong>Design load:</strong></p><p>Design load includes the summation of following items, used for design purpose of a structure.</p><p><strong>Design load = Dead load + live load</strong>.</p><p>Dead load includes: Weight of floor finish, slabs, Column, furniture, ETC.</p>Strength of Materialshttp://www.aboutcivil.org/answers/547/write-short-design-characteristic-characteristic-strength?show=2526#a2526Wed, 02 Sep 2015 09:38:41 +0000Answered: Show the diagram of SF and BM
http://www.aboutcivil.org/answers/495/show-the-diagram-of-sf-and-bm?show=2509#a2509
for what loading condiction I show u SF BM diagram?Strength of Materialshttp://www.aboutcivil.org/answers/495/show-the-diagram-of-sf-and-bm?show=2509#a2509Wed, 02 Sep 2015 05:51:55 +0000Answered: What is the difference between engineering stress and strain?
http://www.aboutcivil.org/answers/450/what-the-difference-between-engineering-stress-and-strain?show=2482#a2482
<p><a rel="nofollow" href="http://www.enggpedia.com/civil-engineering-encyclopedia/87-engineering-mechanics/1671-engineering-stress-and-engineering-strain-curve">Engineering Stress and Strain </a></p><p><em><strong>Follow the link to know more </strong></em></p>Strength of Materialshttp://www.aboutcivil.org/answers/450/what-the-difference-between-engineering-stress-and-strain?show=2482#a2482Wed, 02 Sep 2015 04:07:08 +0000Answered: why need to study strength in civil engineering?
http://www.aboutcivil.org/answers/401/why-need-to-study-strength-in-civil-engineering?show=2469#a2469
Study of Strength in Civil Engineering is of much importance because you have to Design buildings and Structures which must be <strong>safe</strong> and economical. For both goals, strength of the material must be known.Strength of Materialshttp://www.aboutcivil.org/answers/401/why-need-to-study-strength-in-civil-engineering?show=2469#a2469Wed, 02 Sep 2015 03:44:36 +0000Answered: why does concrete cube is tested for 7 & 28 days for comprehensive strength ?
http://www.aboutcivil.org/answers/249/why-does-concrete-cube-tested-days-comprehensive-strength?show=2381#a2381
<p>The 7-day test result is used to monitor early strength gain and is often estimated to be about 75% of the 28-day strength.<br>Regardless of the reliability of the estimate for 28-day strength, 7-day strength test results are useful to the contractor and concrete producer as an early warning signal.<br>With today's fast-track concrete-placement schedules, it's essential for the contractor and concrete producer to know when 7-day test results are low. Then suitable steps can be taken promptly to adjust batch quantities, improve quality control procedures at the job site, and ensure that sampling, molding, and testing of the cylinders are being done in accordance with ASTM applicable standards.<br><a rel="nofollow" href="http://www.aboutcivil.com/Concrete-Planning-and-site-preparation.html">Placement of concrete</a></p>Strength of Materialshttp://www.aboutcivil.org/answers/249/why-does-concrete-cube-tested-days-comprehensive-strength?show=2381#a2381Thu, 27 Aug 2015 09:38:30 +0000Is it beam and colum construction are same?
http://www.aboutcivil.org/answers/2254/is-it-beam-and-colum-construction-are-same
Is it beam and column construction are same?Strength of Materialshttp://www.aboutcivil.org/answers/2254/is-it-beam-and-colum-construction-are-sameFri, 21 Aug 2015 05:14:35 +0000what is difference b/w pure bending and simple bending?????
http://www.aboutcivil.org/answers/2088/what-is-difference-b-w-pure-bending-and-simple-bending
what is difference b/w pure bending and simple bending?????Strength of Materialshttp://www.aboutcivil.org/answers/2088/what-is-difference-b-w-pure-bending-and-simple-bendingThu, 20 Aug 2015 04:38:01 +0000yield stress
http://www.aboutcivil.org/answers/2075/yield-stress
the point at which strain increases without increase in stress is known as yield point stress measured at yield point is called yield stressStrength of Materialshttp://www.aboutcivil.org/answers/2075/yield-stressTue, 18 Aug 2015 07:50:34 +0000Calculate the minimum wall thickness for a cylindrieal vessel that is to carry a gas at a pressure of 14000 psi. The diameter of the vessel is 2ft and the stress is limited to 12 Ksi.
http://www.aboutcivil.org/answers/1996/calculate-minimum-thickness-cylindrieal-pressure-diameter
Calculate the minimum wall thickness for a cylindrical vessel that is to carry a gas at a pressure of 14000 psi. The diameter of the vessel is 2ft and the stress is limited to 12 Ksi. Kindly reply me with complete step wise solution.<br />
regardsStrength of Materialshttp://www.aboutcivil.org/answers/1996/calculate-minimum-thickness-cylindrieal-pressure-diameterTue, 18 Aug 2015 04:12:54 +0000what is kern of section?
http://www.aboutcivil.org/answers/1945/what-is-kern-of-section
what is kern of section?Strength of Materialshttp://www.aboutcivil.org/answers/1945/what-is-kern-of-sectionMon, 17 Aug 2015 07:58:28 +0000can we measure the strength without using plates?
http://www.aboutcivil.org/answers/1892/can-we-measure-the-strength-without-using-plates
can we measure the strength without using plates?Strength of Materialshttp://www.aboutcivil.org/answers/1892/can-we-measure-the-strength-without-using-platesMon, 17 Aug 2015 05:25:15 +0000what is the central deflection of a simply supported beam under concentrated load ?
http://www.aboutcivil.org/answers/1686/what-central-deflection-simply-supported-under-concentrated
what is the central deflection of a simply supported beam under concentrated load ?Strength of Materialshttp://www.aboutcivil.org/answers/1686/what-central-deflection-simply-supported-under-concentratedFri, 07 Aug 2015 04:44:53 +0000What is the difference between Stress & Strain?
http://www.aboutcivil.org/answers/1676/what-is-the-difference-between-stress-strain
What is the difference between Stress & Strain?Strength of Materialshttp://www.aboutcivil.org/answers/1676/what-is-the-difference-between-stress-strainFri, 07 Aug 2015 04:36:28 +0000what is the formule of MS plate weight calculation?
http://www.aboutcivil.org/answers/1590/what-is-the-formule-of-ms-plate-weight-calculation
plz reply this question answerStrength of Materialshttp://www.aboutcivil.org/answers/1590/what-is-the-formule-of-ms-plate-weight-calculationThu, 06 Aug 2015 09:48:55 +0000what is moment of inertia?
http://www.aboutcivil.org/answers/1498/what-is-moment-of-inertia
what is moment of inertia?Strength of Materialshttp://www.aboutcivil.org/answers/1498/what-is-moment-of-inertiaWed, 05 Aug 2015 05:02:55 +0000what is fatigue and fracture ?
http://www.aboutcivil.org/answers/1493/what-is-fatigue-and-fracture
what is fatigue and fracture ?Strength of Materialshttp://www.aboutcivil.org/answers/1493/what-is-fatigue-and-fractureWed, 05 Aug 2015 04:56:48 +0000What is a Kern of a section? Obtain a formula illustrating Kern for rectangular prismatic column and for a circular prismatic column.
http://www.aboutcivil.org/answers/1327/section-illustrating-rectangular-prismatic-circular-prismatic
What is a Kern of a section? Obtain a formula illustrating Kern for rectangular prismatic column and for a circular prismatic column.Strength of Materialshttp://www.aboutcivil.org/answers/1327/section-illustrating-rectangular-prismatic-circular-prismaticMon, 03 Aug 2015 07:58:07 +0000Why do we study about strength of material in civil engg. ?
http://www.aboutcivil.org/answers/1295/why-do-we-study-about-strength-of-material-in-civil-engg
Why do we study about strength of material in civil engg. ?Strength of Materialshttp://www.aboutcivil.org/answers/1295/why-do-we-study-about-strength-of-material-in-civil-enggMon, 03 Aug 2015 05:29:04 +0000find the maximum shear force and BM at a section 8m from the left hinged .
http://www.aboutcivil.org/answers/1066/find-the-maximum-shear-force-and-section-from-the-left-hinged
a three hinged parabolic arch has a span of 25m with a central rise of 5m. a load of 150 kn rolls over the arch from left to right. find the maximum shear force and BM at a section 8m from the left hinged .Strength of Materialshttp://www.aboutcivil.org/answers/1066/find-the-maximum-shear-force-and-section-from-the-left-hingedThu, 30 Jul 2015 03:45:41 +0000axial deformation definition
http://www.aboutcivil.org/answers/994/axial-deformation-definition
axial deformation definitionStrength of Materialshttp://www.aboutcivil.org/answers/994/axial-deformation-definitionWed, 29 Jul 2015 05:31:26 +0000What is the Moment of Resistance?
http://www.aboutcivil.org/answers/986/what-is-the-moment-of-resistance
What is the Moment of Resistance?Strength of Materialshttp://www.aboutcivil.org/answers/986/what-is-the-moment-of-resistanceWed, 29 Jul 2015 05:18:33 +0000soundness of cement
http://www.aboutcivil.org/answers/840/soundness-of-cement
soundness of cementStrength of Materialshttp://www.aboutcivil.org/answers/840/soundness-of-cementTue, 28 Jul 2015 03:51:31 +0000what are the use of stair up in the production of columns
http://www.aboutcivil.org/answers/804/what-are-the-use-of-stair-up-in-the-production-of-columns
what are the use of stair up in the production of columnsStrength of Materialshttp://www.aboutcivil.org/answers/804/what-are-the-use-of-stair-up-in-the-production-of-columnsMon, 27 Jul 2015 09:05:26 +0000method of section
http://www.aboutcivil.org/answers/661/method-of-section
method of sectionStrength of Materialshttp://www.aboutcivil.org/answers/661/method-of-sectionMon, 06 Jul 2015 07:08:37 +0000