2. Why is the periphery of the aluminum sample traced 3. What is the maximum spring constant that can be measured by the Hysitron Triboindenter? 4. What is the relationship between the effective spring constant and Young's modulus for a cantilever beam? For a fixed-fixed beam? Page 2 of 22. Why is the periphery of the aluminum sample traced? 3. What is the maximum spring constant that can be measured by the Hysitron TriboIndenter? 4. What is the relationship between the effective spring constant and Young’s modulus for a cantilever beam? For a fixed-fixed beam? Page 2 of 2