Standard Test Methods for Bend Testing of Material for Ductility

Importancia y uso:

5.1 Bend tests for ductility provide a simple way to evaluate the quality of materials by their ability to resist cracking or other surface irregularities during one continuous bend. No reversal of the bend force shall be employed when conducting these tests.

5.2 The type of bend test used determines the location of the forces and constraints on the bent portion of the specimen, ranging from no direct contact to continuous contact.

5.3 The test can terminate at a given angle of bend over a specified radius of bend or continue until the specimen legs are in contact. The angle of bend can be measured while the specimen is under the bending force (usually when the semi-guided bend test is employed), or after removal of the force as when performing a free-bend test. Product requirements for the material being tested determine the method used.

5.4 Materials with an as-fabricated cross section of rectangular, round, hexagonal, or similar defined shape can be tested in full section to evaluate their bend properties by using the procedures outlined in these test methods, in which case relative width and thickness requirements do not apply.

Subcomité:

E28.02

Referida por:

F0067-13R17, B1005-17R23, F0136-13R21E01, F3273-17R21E01, C1187-20A, A0663_A0663M-23, F1472-23, A0996_A0996M-24, B0169_B0169M-20, A0720_A0720M-02R21, A0568_A0568M-19A, A0749_A0749M-14R21, A0370-24, F1295-24, A0706_A0706M-24, B1015-20, A0706_A0706M-24, F2066-23, A1058-19, A1069_A1069M-23, B0551_B0551M-12R21, F3160-21, A0615_A0615M-24, A0668_A0668M-23, A0996_A0996M-24, B0632_B0632M-24, B0159_B0159M-17R24, B0209_B0209M-21A, A0615_A0615M-24, A0675_A0675M-14R19, A0955_A0955M-20C, A0996_A0996M-24, A1123_A1123M-22, A1035_A1035M-24, F1182-07R23, A0568_A0568M-19A, B0211_B0211M-23, B0236_B0236M-23, A0706_A0706M-24, F3046-21, A0369_A0369M-24, B0317_B0317M-23, A1127_A1127M-23, B0272-12R19, A0615_A0615M-24, B0820-23, A0721_A0721M-02R21, A0370-24, A0955_A0955M-20C, B0249_B0249M-23, B0265-20A, A0372_A0372M-20E01, A0955_A0955M-20C

Volúmen:

03.01

Número ICS:

77.040.10 (Mechanical testing of metals)

Palabras clave:

bend-and-flatten test; bend; crack; ductility; flattened bend; forming limit; fracture; free bend; guided bend; mandrel; pin; plunger; roller; semi-guided bend;