UNLOADING COMPLIANCE METHOD WITH NORMAL PRECISION INSTRUMENTATION - ROTATION CORRECTIONS

被引：6

作者：

IPINA, JEP

机构：

[1] Associate Professor, Facultad de Ingenieria, U.N. Comahue, Buenos Aires 1400

来源：

ENGINEERING FRACTURE MECHANICS | 1990年 / 36卷 / 05期

关键词：

D O I：

10.1016/0013-7944(90)90407-8

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

An unloading compliance test method for CT and 3P-SENB was developed in order to be applied to fracture toughness tests. The method consists of the use of a high sensitivity low range displacement transducer which is mechanically set to zero before each unloading begins. A high sensitivity is obtained with normal precision instrumentation as well as the sensitivity shift error is eliminated. A rotation correction equation for displacement in CT specimens was deduced because the corresponding one given by ASTM is not applicable to this method, also load and displacement rotation correction equations for 3P-SENB specimens are shown. A study of the influence of different parameters in the rotation correction factor, RCF, was carried out. © 1990.

引用

页码：797 / 804

页数：8

共 12 条

[1]

Clarke G.A., 1976, ASTM STP, P27, DOI DOI 10.1520/STP33937S

[2]

CLARKE GA, 1979, 106TH P AIME ANN M A, P79

[3]

IPINA JEP, 1989, J TEST EVAL, V17, P381

[4]

IPINA JEP, 1988, 3ER P COL LAT AM FAD, P850

[5]

Joyce Johnston, COMMUNICATION

[6]

LANDES JD, 1984, 8TH SEMIANNUAL REPOR

[7]

LOSS EJ, 1978, NRL3782 MEM REP

[8]

McCabe DE, 1983, ASTM STP, VII

[9] REVIEW AND EXTENSION OF COMPLIANCE INFORMATION FOR COMMON CRACK GROWTH SPECIMENS [J].

SAXENA, A ;

HUDAK, SJ .

INTERNATIONAL JOURNAL OF FRACTURE, 1978, 14 (05) :453-468

[10]

WU SX, 1984, INT J FRACTURE, V24, pR33, DOI 10.1007/BF00020275

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