ACOUSTIC HARMONIC-GENERATION AT UNBONDED INTERFACES AND FATIGUE CRACKS

被引：296

作者：

BUCK, O

MORRIS, WL

RICHARDSON, JM

机构：

[1] Rockwell International Science Center, Thousand Oaks

来源：

APPLIED PHYSICS LETTERS | 1978年 / 33卷 / 05期

关键词：

D O I：

10.1063/1.90399

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The generation of a second-harmonic signal at a flat unbonded interface between two solids has been observed. This signal is caused by passage of a longitudinal acoustic wave across the interface. The harmonic amplitude depends upon the pressure applied normal to the interface and is largest close to zero pressure, as expected theoretically. The effect has also been used to detect the presence of microcracks on the surface of Al 2024, developed during fatigue.

引用

页码：371 / 373

页数：3

共 18 条

[1] FINITE-AMPLITUDE ULTRASONIC WAVES IN ALUMINUM [J].

BREAZEALE, MA ;

THOMPSON, DO .

APPLIED PHYSICS LETTERS, 1963, 3 (05) :77-78

[2]

BUCK O, 1976, IEEE T SU, V23, P283

[3]

BUCK O, UNPUBLISHED

[4]

GEDROITS AA, 1963, SOV PHYS JETP-USSR, V16, P1122

[5] THEORY OF MECHANICAL DAMPING DUE TO DISLOCATIONS [J].

GRANATO, A ;

LUCKE, K .

JOURNAL OF APPLIED PHYSICS, 1956, 27 (06) :583-593

[6] MECHANISMS OF METAL FATIGUE .1. [J].

GROSSKRE.JC .

PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1971, 47 (01) :11-&

[7] MECHANISMS OF METAL FATIGUE .2. [J].

GROSSKREUTZ, JC .

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 1971, 47 (02) :359-+

[8] DISLOCATION CONTRIBUTION TO 2ND HARMONIC GENERATION OF ULTRASONIC WAVES [J].

HIKATA, A ;

CHICK, BB ;

ELBAUM, C .

JOURNAL OF APPLIED PHYSICS, 1965, 36 (01) :229-&

[9] FATIGUE CRACK INITIATION AND EARLY PROPAGATION IN AL 2219-T851 [J].

MORRIS, WL ;

BUCK, O ;

MARCUS, HL .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1976, 7 (08) :1161-1165

[10]

Murnaghan F. D., 1951, FINITE DEFORMATION E

← 1 2 →