中国科技论文在线

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2005年01月19日

【期刊论文】Storage of methane on wet activated carbon: influence of pore size distribution

柳永宁， Yaping Zhou a， Miao Dai b， Li Zhou b， *， Yan Sun b， Wei Su b

Letters to the Editor/Carbon 42(2004)1852-1855，-0001，（）：

-1年11月30日

摘要

A.， Activated carbon， B.， High pressure， C.， Adsorption， D.， Gas storage

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2005年01月19日

【期刊论文】CRACK ROTATION FACTOR AND DYNAMIC FRACTURE MEASUREMENT

柳永宁， LU YONGNING and SONG XIAOLONG

Engineering Fracture Mechanics Vol. 52, No.6, pp. 1029-1033, 1995，-0001，（）：

-1年11月30日

摘要

A linear relationship between the cross-head displacement S or pendulum displacement in the Charpy test and the crack mouth opening displacement V has been found in the paper for several polymers and a mild steel. The crack opening displacement δ is material and crack-length dependent and it decreases with increasing crack length. Through analysis the dynamic fracture toughness K1d can be measured from the P-S (the load and the cross-head displacement) curve, which is very easy to obtain in static or dynamic tests.

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2011年07月05日

【期刊论文】机械合金化在贮氢合金研究中的应用

柳永宁

，-0001，（）：

-1年11月30日

摘要

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2011年07月05日

【期刊论文】超髙碳钢马氏体相变及超细晶粒对亚结构的影响

柳永宁

，-0001，（）：

-1年11月30日

摘要

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2005年01月19日

【期刊论文】Fragmentation study of interfacial shear strength of single SiC fiber reinforced Al after fatigue

柳永宁， Yongning Liu a， *，， Wei Kang a， Jiawen He a， Zuming Zhu b

Materials Science and Engineering A 343(2003)243-250，-0001，（）：

-1年11月30日

摘要

The interfacial shear strength of SiC fiber reinforced aluminum composite has been studied by the fragmentation test of single fiber reinforced model specimens after a number of fatigue cycles. The result shows that apparent stiffness of the testing machine is influenced by cyclic loading, which will affect the calculation of fiber strength by Clough's model. An extracting test in which fragmented fiber was extracted out by dissolving the matrix material in NaOH water solution indicated that the fiber strength did not lose via vacuum hot press treatment. This result contradicts the Clough's model. The experimental result showed that the critical length of the fiber increases a little after a few cycles of fatigue loading and thus, the interfacial shear strength decreases. The reason for this is that the thermal residual stress around the fiber developed during fabrication decreases in cyclic loading.

Fragmentation， Composite materials， Fracture， Fatigue

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