留学群专题频道力学实验报告栏目，提供与力学实验报告相关的所有资讯，希望我们所做的能让您感到满意！
07-25
众所周知，实践是验证真理的独特标准，为了确保下次工作能更好地完成，我们经常需要做报告。有什么优秀的报告模板呢？让我们一同进入“力学实验报告”的世界，揭开它的秘密。希望通过本文，您能够找到一些新的思路和方法！
目录
一、拉伸实验···············································································2
二、压缩实验···············································································4
三、拉压弹性模量E测定实验···················································6
四、低碳钢剪切弹性模量G测定实验·······································8
五、扭转破坏实验····································································10
六、纯弯曲梁正应力实验··························································12
七、弯扭组合变形时的主应力测定实验··································15
八、压杆稳定实验······································································18
一、拉伸实验报告标准答案
实验目的：见教材。实验仪器见教材。
实验结果及数据处理：例:(一)低碳钢试件
强度指标:
ps=__22.1___KN屈服应力ζs=ps/A__273.8___Mpapb=__33.2___KN强度极限ζb=pb/A__411.3___Mpa塑性指标:
伸长率L1-LL100%AA1A
33.24%面积收缩率
100%
68.40%
低碳钢拉伸图:
（二）铸铁试件
强度指标:
最大载荷pb=__14.4___KN
强度极限ζb=pb/A=_177.7__Mpa
问题讨论：
1、为何在拉伸试验中必须采用标准试件或比例试件,材料相同而长短不同的试件延伸率是否相同
答:拉伸实验中延伸率的大小与材料有关,同时与试件的标距长度有关.试件局部变形较大的断口部分,在不同长度的标距中所占比例也不同.因此拉伸试验中必须采用标准试件或比例试件,这样其有关性质才具可比性.
材料相同而长短不同的试件通常情况下延伸率是不同的(横截面面积与长度存在某种特殊比例关系除外).
2、分析比较两种材料在拉伸时的力学性能及断口特征.
答:试件在拉伸时铸铁延伸率小表现为脆性,低碳钢延伸率大表现为塑性;低碳钢具有屈服现象,铸铁无.低碳钢断口为直径...
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