Bac E Cameroun
Cameroon Baccalauréat Série E (Mathématiques et Techniques)
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A steel tie rod of length L = 2.0 m and cross-sectional area S = 100 mm² (1.0 × 10⁻⁴ m²) is subjected to a tensile axial force N = 20 kN. Given Young's modulus E = 200 GPa (2.0 × 10¹¹ Pa), what is the normal stress σ and total elongation ΔL?
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