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MECH&AE 156A · Lec 1

Advanced Strength of Materials

Fall 2026Jin, L.4 units

Seats, time, final and grades

Seats

Open, 9 seats left.

71 of 80 enrolled, lecture and all discussions summed.

Meets

MW 2:00pm-3:50pm

Lecture only. You also attend a discussion, listed below.

Final

Tue 8 Dec, 3:00pm to 6:00pm

One exam for the whole class, Los Angeles time.

Read 3 days ago.

Grades

3.12
predicted, this instructor · 294 grades

294 letter grades, Jin, L..

Read 51 minutes ago. This is a recent reading, not a live seat count.

Enroll on the registrar (opens in a new tab) Sign in to watch for an opening

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Put this class on a board

A board is one quarter you are drafting, so it needs an account to live in. Signing in brings you straight back to this page, with this class still in front of you.

Before you can enroll

Registrar's Restrictions cell, read 3 days ago: "Undergraduate School of Engineering Majors".

Tell dibs what you have already taken and this line will say which of these you have. Your list.

From the registrar

Students who enroll in upper-division courses offered by the Samueli School without completing the requisites are subject to disenrollment after the second class meeting. If necessary, consult with an OASA counselor through MyUCLA Message Center.

Restrictions read 3 days ago. dibs re-reads these slowly because they rarely change; watch the section and it moves to every 6 hours.

Discussions

You enroll in the discussion, not the lecture, so the seat figure above is the sum across all of them and can read open while every discussion you could actually join is full.

1 discussion, all open.

When it meets

Mon
Tue
Wed
Thu
Fri
6am
7am
8am
9am
10am
11am
12pm
1pm
2pm
3pm
4pm
5pm
6pm
7pm
8pm
9pm
10pm

Meets: MW 2:00pm-3:50pm

Discussions: F 10:00am-11:50am

Boelter Hall 2444

Grades

3.12
predicted, this instructor · 294 grades

Of the 3 other people in the grade record for MECH&AE 156A, the 2 with the most grades: KHALID JAWED, MOHAMMAD at 3.37 over 210 grades and GOYAL, VINAY KUMAR at 3.68 over 59 grades.

A range
39%
P/NP
-
letter grade only
D/F/W
5.4%

Full grade history for MECH&AE 156A

What students say

dibs measures outcomes: grades, seats, how fast it fills. For what the class is actually like to sit in, BruinWalk has the reviews.

Workload, heavy. 2.2 of 5 for Lihua Jin, where 5 is lightest. Read 30 days ago.

What the work looks like

  • Exams mentioned, no number given, said by 20 reviewers
  • Problem sets mentioned, no number given, said by 16 reviewers

Read from 44 reviews 17 days ago. dibs counts only what a review actually states, so a kind of work nobody mentioned is absent rather than zero.

MECH&AE 156A reviews for Lihua Jin Reviews for all professors of MECH&AE 156A

Will it still be here

medium risk chance of closing before your enrollment pass.

Final enrollment per term from four years of grade data. Summer excluded: different population, different pass structure.

  • 6121F
  • 7022W
  • 8622S
  • 5522F
  • 5923W
  • 6724W
  • 3924F
  • 7325W
  • 5425F
Enrollment by term: 21F 61, 22W 70, 22S 86, 22F 55, 23W 59, 24W 67, 24F 39, 25W 73, 25F 54

Peak 86 · most recent 25F at 54

Seats over time

Filled by 4 over about 2 months

71 of 80 · 9 left in its discussions
17 Aug 15:079 Sep 06:351 Oct 22:03
dibs read 168 of the 696 hours its hourly record covers, 24%, and did not look in 528. dibs had no hourly record before 2 Sep, which is the other 392 of 1088 plotted.71 of 80 enrolled at the newest reading, 51 minutes ago, with 9 left in its discussions. Seats from 17 Aug 15:07 to 1 Oct 22:03, 67 to 71. dibs read 168 of the 696 hours its hourly record here covers, 24%. An hour marked as read confirms a check, not continuous monitoring. That check recorded no change; changes between checks may be missed. For 528 hours dibs was keeping a record and did not reach this section. Nothing before 2 September at 23:00, where this section's record starts, has a read either way, which is 392 hours of this window. Where the drawing is faint or broken, that never means the readings are doubtful. It means the stretch between them is unaccounted for.

A dot is a reading where something moved: the seat count, the status, or the waitlist. Flat between dots joins recorded counts; changes between reads may be missed. The line starts when dibs first saw this section rather than reaching back before it existed. The last one is the last time dibs read this section, moved or not: 51 minutes ago.

Show the readings (30)
Recorded Enrolled Capacity Status Waitlist Hours read
1 Oct 22:03 71 80 open - 13 of 43
30 Sep 04:12 71 80 open - 9 of 31
28 Sep 22:32 72 80 open - 2 of 4
28 Sep 19:02 71 80 open - 2 of 5
28 Sep 15:32 70 80 open - 2 of 4
28 Sep 12:02 71 80 open - 30 of 104
24 Sep 05:22 70 80 open - 10 of 37
22 Sep 17:52 71 80 open - 9 of 29
21 Sep 13:52 72 80 open - 7 of 23
20 Sep 15:52 73 80 open - 14 of 46
18 Sep 18:32 74 80 open - 5 of 15
18 Sep 04:32 73 80 open - 21 of 76
15 Sep 01:32 74 80 open - 2 of 4
14 Sep 22:02 75 80 open - 3 of 8
14 Sep 15:02 74 80 open - 23 of 75
11 Sep 13:40 75 80 open - 25 of 176
4 Sep 06:40 74 80 open - 3 of 17
3 Sep 14:40 73 80 open - 5 of 16
2 Sep 23:40 72 80 open - 1 of 46, 45 no hourly record
1 Sep 02:40 71 80 open - no hourly record
1 Sep 00:40 70 80 open - no hourly record
31 Aug 20:40 71 80 open - no hourly record
29 Aug 00:40 70 80 open - no hourly record
28 Aug 21:40 69 80 open - no hourly record
28 Aug 19:40 70 80 open - no hourly record
28 Aug 17:40 69 80 open - no hourly record
28 Aug 16:40 70 80 open - no hourly record
27 Aug 11:28 69 80 open - no hourly record
21 Aug 20:40 68 80 open - no hourly record
17 Aug 15:07 67 80 open - -
How readings and alerts work

A reading and an hourly record are different things, and most charts here hold more of the second missing than present. dibs has taken readings of a section since long before it began keeping an hour-by-hour log of when it looked, so the empty stretches are dibs saying it was not keeping that log yet, not that it looked and found nothing. That is the age of the record and not a fault.

Seat counts show the last successful read, not live availability. Refreshes can be delayed by request limits or upstream interruptions. Watched sections receive priority, but an hourly update for every section is not guaranteed.

The registrar can change a seat count between our checks. Alerts depend on dibs detecting an opening and completing delivery; a quiet watch does not prove that no seat opened. Check the registrar before enrolling.

Class chat

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