Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Update mpl.py #312

Open
wants to merge 1 commit into
base: master
Choose a base branch
from
Open

Update mpl.py #312

wants to merge 1 commit into from

Conversation

thisisapple
Copy link

@thisisapple thisisapple commented Sep 2, 2024

I tested a simply supported beam and added a node in the beam. There was only one element before the node was added. I then added a point load at the new node. See my codes below. When a new node is inserted, the original element will be deleted. Two new elements will be defined accordingly. However, the original code still references the original key in the self.system.element_map[1]. But Key 1 has been deleted. A key error will occur. You can test my model here:


from anastruct import SystemElements
structure = SystemElements(EA=15000, EI=5000, mesh=101) # define elements
structure.add_element(location=[[0,0],[10,0]])

## define support
structure.add_support_hinged(node_id=1)
structure.add_support_hinged(node_id=2)
structure.insert_node(element_id=1, factor=0.4)

## define loads
structure.q_load(q=-5, element_id=[2,3],direction='element') structure.point_load(node_id=3, Fx=5, Fy=0)

## solve the numerical problem
structure.solve()

structure.show_bending_moment()

structure.show_axial_force()

I tested a simply supported beam and added a node in the beam. There was only one element before the node was added. I then added a point load at the new node. See my codes below. When a new node is inserted, the original element will be deleted. Two new elements will be defined accordingly. However, the original code still references the original key in the self.system.element_map[1]. But Key 1 has been deleted. A key error will occur. You can test my model here:

---------------------------------
from anastruct import SystemElements
structure = SystemElements(EA=15000, EI=5000, mesh=101)
# define elements
structure.add_element(location=[[0,0],[10,0]])

# define support
structure.add_support_hinged(node_id=1)
structure.add_support_hinged(node_id=2)
structure.insert_node(element_id=1, factor=0.4)

# define loads
structure.q_load(q=-5, element_id=[2,3],direction='element')
structure.point_load(node_id=3, Fx=5, Fy=0)

# structure.validate()
structure.show_structure()

# solve the numerical problem
structure.solve()

structure.show_bending_moment()

structure.show_axial_force()
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

Successfully merging this pull request may close these issues.

1 participant