In a tensile test on a metal specimen having a cross section 20 mm by 10 mm elastic breakdownoccurred at a load of 70 000 N.A thin plate madec from the same material is to be subjected to loading such that at a certainpoint in the plate the stresses are o,=-70 N/mm², 7.y= 60 N/mm² and o. Determine themaximum allowable values of o, using the Tresca and von Mises theories of elastic breakdown.Ans. 259 N/mm² (Tresca), 294 N/mm² (von Mises).

Given data, σy = -70 N/mm2 τxy = 60 N/mm2 Specimen area A = 20×10=200 mm2 Yeild load = 70000 N Yeild…

In a tensile test on a metal specimen having a cross section 20 mm by 10 mm elastic breakdown occurred at a load of 70 000 N. A thin plate made from the same material is to be subjected to loading such that at a ccrtain point in the plate the stresses are o,=-70 N/mm², 1.y=60 N/mm² and o,. Determine the maximum allowable values of o̟ using the Tresca and von Mises theories of elastic breakdown. VO Ans. 259 N/mm² (Tresca), 294 N/mm² (von Mises).

In a tensile test on a metal specimen having a cross section 20 mm by 10 mm elastic breakdown occurred at a load of 70 000 N. A thin plate made from the same material is to be subjected to loading such that at a ccrtain point in the plate the stresses are o,=-70 N/mm², 1.y=60 N/mm² and o,. Determine the maximum allowable values of o̟ using the Tresca and von Mises theories of elastic breakdown. VO Ans. 259 N/mm² (Tresca), 294 N/mm² (von Mises).

Materials Science And Engineering Properties

1st Edition

ISBN:9781111988609

Author:Charles Gilmore

Publisher:Charles Gilmore

Chapter6: Introduction To Mechanical Properties

Section: Chapter Questions

Problem 6.2P

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Material Properties

Construction in civil engineering demands high strength, durability, and longevity. These targets can be achieved by better design and analysis, along with the correct choice of materials. Different materials have different properties and hence, they respond and performs differently under the various condition of external loadings. It is therefore a critical task of an engineer to select the right material based on the property that the material is supposed to function in real-time. When speaking about the property, there are different categories of material properties like chemical property, physical property, mechanical property, electrical property, magnetic property, thermal property, etc. These material properties form the basis of material selection in various applications.

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In a tensile test on a metal specimen having a cross section 20 mm by 10 mm elastic breakdown
occurred at a load of 70 000 N.
A thin plate madec from the same material is to be subjected to loading such that at a certain
point in the plate the stresses are o,=-70 N/mm², 7.y= 60 N/mm² and o. Determine the
maximum allowable values of o, using the Tresca and von Mises theories of elastic breakdown.
Ans. 259 N/mm² (Tresca), 294 N/mm² (von Mises).

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