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Physics, 22.07.2021 09:50 mrguyman

Cho thanh ABCD (môđun đàn hồi E = 20000 kN/cm2 ) chịu kéo/nén đúng tâm bởi các lực tập
trung P1, P2, P3. Các đoạn thanh AB, BCD có tiết diện ngang khác nhau (xem các mặt cắt). Hãy:
a) Vẽ lại sơ đồ tính đã cho theo đúng số liệu được giao.
b) Vẽ biểu đồ lực dọc Nz.
c) Vẽ biểu đồ ứng suất σz.
d) Xác định chuyển vị ngang của điểm D (tức độ giãn dài của toàn thanh).

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Cho thanh ABCD (môđun đàn hồi E = 20000 kN/cm2 ) chịu kéo/nén đúng tâm bởi các lực tập
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