expanding metals 中文意思是什麼

expanding metals 解釋
膨脹金屬
  1. The results at normal temperature have shown that klc of high polymer bonded explosive are very low comparing to metals and some high polymer materials, thus the ability of pbxs to resist crack expanding is very poor, and once some cracks occur inner a structural part of pbxs, the structure will fail very soon and easily. so in the process of machining and production, cracks should be avoided carefully in pbxs parts. some important laws about klc of the three typical pbxs above changes with temperature have been obtained as follows : a

    對三種具有代表性的高聚物粘結炸藥j1 、 j2和j3在常溫下的平面應變斷裂韌度進行了測試與研究,研究結果表明:相對于金屬及某些高分子材料而言,高聚物粘結炸藥的k _ ( ic )值很低,即高聚物粘結炸藥的抗裂紋擴展能力是極差的,一旦炸藥構件中產生了裂紋,炸藥構件將極易破壞,因此,在高聚物粘結炸藥構件的生產及加工過程中,應避免裂紋的產生。
分享友人