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力学实验报告(汇总3篇)

力学实验报告

  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!

力学实验报告 篇1

  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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