ANSI EIA-364-79-1998 pdf download Insert Bond Strength Test Procedure for Electrical Connectors
3.2 Preparation
The specimen shall be prepared as normally used in production consisting of a bonded insert assembly or a portion of a bonded insert assembly. A suitable gripping fixture shall be bonded to the front and rear of the insert assembly.
4 Test procedure
4.1 Setup Using suitable equipment, an axial tensile load shall be applied to the test specimen. Unless otherwise specified, the load shall be sufficient to cause a stress of689 kPa ±35 kPa (100 psi± 5 psi) to the insert assembly bond. The actual axial load required is determined by multiplying the available bond surface area of the test joint by the required stress. Unless otherwise specified, for a bonded connector insert assembly, the load shall be increased at a minimum rate of0.45 kilogram per second (1 pound per second) until the required load is reached. Unless otherwise specified, the required load shall be maintained for a minimum of30 seconds.
4.2 Requirements A failure is identified by visual observation (unless otherwise specified, up to 3x magnification) of separation or cracks at the bond joint while the required max. load is applied. If a failure occurs, indicate cohesive (substrate fails rather than adhesive), adhesive or indeterminant failure.
5 Details to be specified
The following details shall be specified in the Detail Specification:
5.1 The tensile load applied.
5.2 The rate ofload application.
5.3 The time ofload application.
5.4 Number of samples to be tested.
5.5 Pass/fail criteria.
5.6 Additional requirements if other than specified.
6 Test documentation
Documentation shall contain the following:
6.1 Title of test.
6.2 Sample description – including fixturing.
6.3 Test equipment used and dates oflast calibration.
6.4 Test procedure.
6.5 Values and observations
6.6 Ambient temperature and humidity
6.7 Name of operator and date oftest.
6.8 Any referencing documentation such as an applicable Detail specification.