A test using the Charpy method measures a weld's ability to withstand a(n) force

A test using the Charpy method measures a weld's ability to withstand a(n) force

• A. Impact
• B. Bending
• C. Twisting
• D. Stretching

Answer: (A)

Charpy testing gauges toughness under a sudden, high-speed load. In this method, a notched specimen is struck by a pendulum hammer and the energy absorbed until it fractures is measured. That absorbed energy reflects the weld’s ability to resist an impact—the sudden force that could cause brittle failure. It’s specifically about impact resistance, not about bending, twisting, or stretching, which are assessed by separate tests. The result is typically given as the energy absorbed (in joules), indicating how tough the weld is in the face of a rapid load.

Charpy testing gauges toughness under a sudden, high-speed load. In this method, a notched specimen is struck by a pendulum hammer and the energy absorbed until it fractures is measured. That absorbed energy reflects the weld’s ability to resist an impact—the sudden force that could cause brittle failure. It’s specifically about impact resistance, not about bending, twisting, or stretching, which are assessed by separate tests. The result is typically given as the energy absorbed (in joules), indicating how tough the weld is in the face of a rapid load.