MIL-HDBK-787, MILITARY STANDARDIZATION HANDBOOK: NONDESTRUCTIVE TESTING METHODS OF COMPOSITE MATERIALS - ULTRASONIC (01 APR 1988)., This document is intended to provide information on using ultrasound to study several types of discontinuities found in various composite materials. The fundamentals of ultrasonics are not included as this type of information is available in MIL-HDBK-786/6. 作者: jokechen 时间: 2016-4-28 08:59:42