Sức bền Vật Liệu
Chương 4
Nguyễn Duy Đức
1
Đề Cương
•Chương 01: Giới thiệu về ứng suất
•Chương 02: Ứng suất và biến dạng trong hệ chịu tải dọc trục
•Chương 03: Đặc trưng hình học của mặt cắt ngang
•Chương 04: Xoắn thuần túy
•Chương 05: Uốn thuần túy
•Chương 06: Dầm chịu uốn ngang phẳng
•Chương 07: Ứng suất – biến dạng trong trường hợp tổng quát
•Chương 08: Biến dạng của dầm chịu uốn (deflection)
•Chương 09: Phương pháp năng lượng
•Chương 10: Hệ chịu tải trọng động
2
Chương 4
1.Khái niệm
2.Biến dạng của trục chịu xoắn
3.Công thức ứng suất tiếp và góc xoắn
4.Bài toán siêu tĩnh khi xoắn
5.Thiết kế trục truyền
6.Xoắn thanh mặt cắt ngang không tròn
7.Thanh mặt cắt ngang thành mỏng
3
Khái niệm
4
𝜏𝑥𝑦 = 𝐺𝛾𝑥𝑦
Khái niệm
5
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