2011年10月1日 · A back-face strain (BFS) compliance relation has been developed for the standard compact C (T) specimen for a very wide range in crack-length-to-width (a / W) ratios. Both finite-element and boundary-element methods were used to develop the BFS relation for a / W ratios from 0.2 to 0.95.

2024年9月1日 · In this study, the backface strain (BFS) method applied by digital image correlation (DIC) is used to detect crack initiation and propagation in adhesively bonded single-lap joints (SLJ).

2010年4月12日 · Calibrations relating back-face strain (BFS) to crack length in precracked flexure specimens were developed for different strain gage sizes. The functions were verified via experimental compliance measurements of notched and precracked ceramic beams.

Back-face strain compliance (BFS compliance) for the four-point bend specimen has been calibrated for various crack length ratios. Finite element technique was employed to simulate four-point loading and calculate back-face strain of the bend specimen.

1994年11月1日 · A new calibration of back face strain (BFS) versus crack length a was developed. The calibration incorporates crack closure effects and is based upon a least squares multiple curvilinear regression analysis using seven specimens. Fatigue crack growth took place over a range of crack length to width ratios a/W from 0.2 to 0.8.

A back-face strain (BFS) compliance relation has been developed for the standard compact C (T) specimen for a very wide range in crack-length-to-width (a/W) ratios. Both finiteelement and boundary-element methods were used to develop the BFS relation for a/W ratios from 0.2 to 0.95.

2011年10月1日 · A back-face strain (BFS) compliance relation has been developed for the standard compact C(T) specimen for a very wide range in crack-length-to-width (a/W) ratios. Both finite-element and boundary-element methods were used to develop the BFS relation for a/Wratios from 0.2 to 0.95.

2015年3月19日 · This paper concentrates in defining an equation for crack length of a specimen Single Edge Notch Bend – Four Point (SENB-4P), applying the so-called Back-face Strain (BFS) method for a large...

2024年11月1日 · In this study, the backface strain (BFS) is measured by both digital image correlation (DIC) and fiber optic sensors (FOS) to detect the crack initiation and propagation in adhesively bonded composite single-lap joints (SLJ).

2015年3月15日 · This paper concentrates in defining an equation for crack length of a specimen Single Edge Notch Bend – Four Point (SENB-4P), applying the so-called Back-face Strain (BFS) method for a large extension and precision.