contributor author | R. A. Kline | |
contributor author | C. P. Hsiao | |
contributor author | M. A. Fidaali | |
date accessioned | 2017-05-08T23:22:36Z | |
date available | 2017-05-08T23:22:36Z | |
date copyright | July, 1986 | |
date issued | 1986 | |
identifier issn | 0094-4289 | |
identifier other | JEMTA8-26911#214_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/101216 | |
description abstract | In this experiment, the method of phase spectral analysis was used to monitor ultrasonic moduli changes in a two part epoxy adhesive bonded between steel adherends during cure as well as during cyclic loading. Ultrasonic signals were generated using a piezoelectric transducer operated in the pulse-echo mode. These signals were digitized using a high-speed transient digitizer (100 MHz sampling rate) and stored for post-test analysis in the memory of a minicomputer. Based on this information, ultrasonic attenuation and phase velocity measurements (as a function of frequency) were obtained for both longitudinal and shear waves throughout the cure cycle. This technique was also used to monitor the cure of adhesives with different mix ratios in order to evaluate the utility of this approach for quality control purposes. The potential use of the method to study fatigue damage development was also considered. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Nondestructive Evaluation of Adhesively Bonded Joints | |
type | Journal Paper | |
journal volume | 108 | |
journal issue | 3 | |
journal title | Journal of Engineering Materials and Technology | |
identifier doi | 10.1115/1.3225870 | |
journal fristpage | 214 | |
journal lastpage | 217 | |
identifier eissn | 1528-8889 | |
keywords | Steel | |
keywords | Adhesives | |
keywords | Quality control | |
keywords | Nondestructive evaluation | |
keywords | Epoxy adhesives | |
keywords | Waves | |
keywords | Emission spectroscopy | |
keywords | Shear (Mechanics) | |
keywords | Sampling (Acoustical engineering) | |
keywords | Echoes | |
keywords | Piezoelectric transducers | |
keywords | Cycles | |
keywords | Fatigue damage | |
keywords | Signals AND Velocity measurement | |
tree | Journal of Engineering Materials and Technology:;1986:;volume( 108 ):;issue: 003 | |
contenttype | Fulltext | |