Impact-Testing-Izod-and-Charpy-Methods-1.pptx

Impact testing izod and charpy method

1. MATERIAL SCIENCE AND METALLURGY TOPIC : IMPACT TEST – IZOD AND CHARPY PRESENTED BY : AROCKIA PRDHEEP . J 312824115007 MHT - “ K “

2. 1 Introduction to Impact Testing Why impact testing is important? 2 Izod and Charpy Test Methods Differences in setup and application. 3 Factors Affecting Impact Strength Temperature, notch sensitivity, and material properties. 4 Applications and Standards Industry uses and standardized procedures. CONTENT SHOULD BE DISCUSS 

3. Impact Testing: Izod & Charpy Methods Evaluating material toughness through impact resistance measurements. Understanding test methods, procedures, and results.

4. Introduction to Impact Testing Purpose : The Impact Test is used to determine a material’s toughness — its ability to absorb energy and resist sudden shocks or impacts without fracturing. Types : The most common types are Charpy and Izod tests. Both involve striking a notched specimen with a swinging pendulum to measure the energy absorbed during fracture. Applications : It helps in selecting materials for structural applications, especially where they might face dynamic or impact loads (e.g., automotive, aerospace, construction).

5. Izod Impact Test l Test Setup : In the Izod test, a notched specimen is placed vertically in a clamp, and a pendulum strikes it on the same side as the notch. Purpose : It measures the impact resistance or toughness of a material — the energy absorbed before breaking under a sudden load. Applications : Commonly used for testing plastics and metals to determine their suitability for products that may experience sudden impacts

6. Charpy Impact Test Test Setup : In the Charpy test, the notched specimen is placed horizontally on supports, and a pendulum strikes it opposite to the notch . Purpose : It determines a material’s toughness by measuring the energy absorbed during fracture when subjected to a sudden impact. Applications : Widely used in industries like automotive, aerospace, and construction to ensure materials can withstand impact loads, especially at low temperatures.

7. Izod vs. Charpy: Key Differences Feature Izod Charpy Specimen Support Cantilever Simply Supported Notch Orientation Faces Striker Faces Away Stress Type Tensile & Bending Bending

8. Factors Affecting Impact Strength Temperature Notch Sensitivity Material Properties Low temperatures can make materials brittle, reducing impact strength, while higher temperatures often increase toughness . The type and structure of a material determine how well it can absorb impact energy. Stronger bonding and flexible structures generally increase impact strength . Material quality affects impact strength in touch-sensitive devices — stronger, flexible materials can handle more impact without breaking .

9. Applications Automotive Bumpers, chassis components. Aerospace Wing structures, engine parts. Construction Structural beams, safety barriers.

10. Standards ASTM E23 Standard Test Methods for Notched Bar Impact Testing of Metallic Materials. ISO 148 Metallic Materials - Charpy Pendulum Impact Test

11. CHATGPT & AI Tool GOOGLE Images