Neck propagation in polymers
Neck propagation in polymers
复制标题
聚合物中的颈伸
DOI:
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发表时间:
1974
期刊:
影响因子:
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通讯作者:
G. I. Barenblatt
中科院分区:
文献类型:
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作者:
G. I. Barenblatt
In tension specimens of polymeric materials of both amorphous and crystalline structure a remarkable phenomenon is observed in certain conditions, which consists in the following. Suppose that tests are carried out with a constant speed of the grips holding a specimen in a testing machine. At first the extension is homogeneous throughout the specimen and the applied stress grows in proportion to strain (portion I in the schematic diagram of fig. 1). At a