首页> 外文会议>Proceedings of the 2nd international symposium on impact engineering >CHARACTERISTIC PROPERTY OF DYNAMIC STRESS CONCENTRATION OF STRIP WITH SHOULDER FILLET
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CHARACTERISTIC PROPERTY OF DYNAMIC STRESS CONCENTRATION OF STRIP WITH SHOULDER FILLET

机译:带肩填角条的动态应力集中特性

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Dynamic stress concentration factor a of strip made of PMMA with shoulder fillet was investigated in terms of strain gage method. The a value of strip subjected to an impact tension or compression on the narrow end was larger than that of wide end impact. The a value for impact compression was larger than that for impact tension. After the first peek in a strain history,more larger amplitudes were recorded on every strain history due to the superposition of waves reflected from the boundaries of strip. These characteristic properties are quite dif-ferent from static one and it is emphasized that these properties should be taken into account for safe design engineering.
机译:用应变计法研究了PMMA带肩圆角钢带的动态应力集中系数α。在窄端受到冲击拉力或压缩的带材的a值大于宽端冲击的带材的a值。冲击压缩的α值大于冲击拉伸的α值。在应变历史记录中的第一次观察之后,由于从条带边界反射的波的叠加,在每个应变历史记录中记录了更大的幅度。这些特性与静态特性完全不同,需要强调的是,为了安全的设计工程,应考虑这些特性。

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