帮我解一下这个材料力学题目A tensile test uses a test specimen that has a gage length of 50 mm and an area = 200 mm2. During the test the specimen yields under a load of 98,000 N. The corresponding gage length = 50.23 mm. This is the 0.2

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帮我解一下这个材料力学题目A tensile test uses a test specimen that has a gage length of 50 mm and an area = 200 mm2. During the test the specimen yields under a load of 98,000 N. The corresponding gage length = 50.23 mm. This is the 0.2
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帮我解一下这个材料力学题目A tensile test uses a test specimen that has a gage length of 50 mm and an area = 200 mm2. During the test the specimen yields under a load of 98,000 N. The corresponding gage length = 50.23 mm. This is the 0.2
帮我解一下这个材料力学题目
A tensile test uses a test specimen that has a gage length of 50 mm and an area = 200 mm2. During the test the specimen yields under a load of 98,000 N. The corresponding gage length = 50.23 mm. This is the 0.2 percent yield point. The maximum load = 168,000 N is reached at a gage length = 64.2 mm.
a) Determine yield strength Y,
(b) Determine modulus of elasticity E
(c) Determine tensile strength TS.

帮我解一下这个材料力学题目A tensile test uses a test specimen that has a gage length of 50 mm and an area = 200 mm2. During the test the specimen yields under a load of 98,000 N. The corresponding gage length = 50.23 mm. This is the 0.2
还是英文,不给点悬赏分啊.
a)Sy=98000/(200*10^-6)=490Mpa
b)E=FL/(elongation）*A=106.5Gpa
c)assuming volume does not change,implies 50*200=64.2*A,A=155.76mm^2,
Sut=F/A=168000/(155.76*10^-6)=1.08Gpa

帮我解一下这个材料力学题目A tensile test uses a test specimen that has a gage length of 50 mm and an area = 200 mm2. During the test the specimen yields under a load of 98,000 N. The corresponding gage length = 50.23 mm. This is the 0.2 谁帮我做一下材料力学的题,谢了 麻烦帮我这两道题目解一下 2x*x=30这个题目怎么算?会的帮我解一下, 材料力学题目 材料力学一个概念不懂什么是材料力学中的切应力互等定理,高手帮我解释,推导一下,要图.小弟感谢不尽 请教一个材料力学的问题~请各位高手帮忙做个受力分析和解答!感谢了想请教各位高手两个材料力学最基本的题目,由于以前没做过这方面的题目,所以比较不懂,希望各位高手能帮我解答一下~ 帮我解一下题目：1.He did a lot of medical research _____ cancer 帮我解一下这个摩斯密码 帮我解一下这个方程 帮我解一下这个方程式. 帮我解一下这个方程. 帮我解一下这个三元一次方程 帮我想一下这个文的题目 谁帮我解一下下面的4道题目 谁帮我做一下英语,题目是这个,诚信要做的和我说, 帮忙解一下工程力学材料力学的题, 帮我做一下这些题目,好吗?